Button



J. M. CLARK Aug. 23, 1932.

BUTTON Filed Aug. 5, 1931 @ifozz M 227% @"WJMM, www@ @JMA Patented Aug. 23, 1932 urr STATES iarrfr'frorrk I Application filed August 3, 1931.'. ierialiN'e.` 554,732'. .V l

This invention relates to metal buttons, and among other objects aims to provide a durable button which may be made cheaply and by a few, simple operations.-

:5 The nature of the invention may be readily understood by reference to one Villustrative construction embodying the invention and shown in the accompanying drawing.

In said drawing Fig. 1 is a sectional elevation of a button on an enlarged scale; Y i

Fig. 2 is a bottom plan view of the 'button taken from the plane 2-2 of Fig. 1;

Fig. 3 is a top plan View of the button, on 'l5v a scale smaller than that of Fig. 3, and showing the decorative embossing on the button top; V

Fig. 4 is a side Velevation of a button similar to that shown in Figs. 1, 2, and 3 but designed S for attachment by a single prong fastener;

and

Fig. 5 is a bottom plan View of the button shown in Fig. 4.

The various elements of the illustrative button are made of raw materials of such form as to require a minimum fabrication or treatment to connect them into button parts. The shank 10 of the button being generally cylindrical in character and embodying `a remade of solid, cylindrical rod stock Whose diameter is that of the shank of the finished button. The rod stock may be of any appropriate material and canadvantageous y B5 be soft steel which may be readily formed and yet is sufficiently hard so that the inner surface of the die cup 11 Willturn or upset the fastener prongs. The head 12 of the button being fiat in character is made from I iat cess 11 for upsetting a fastener prong, isV

sonrie stagefduring and als-:f d semblIy-{of v thek button partsthe die recessl 11. isaformed inwone endf of. the button, anlnby 1f eefapplrepriate Oreratoilf This/.mer yb efe-y fectedv by an appropriate `operation such@- asy drilling with.l a-` drill. Whose* y end hasfthe f con#` tour o fthataofi` the die recess .orforniation .by. A

a .pair of.` dies.

Iffthe buttonbe designed for,attachinent-VV y 15.1,and the bottom ofthe recess 11 is :such

that, upon. attachment. of the.. button, the i prongs :of the fastener. Will be, forcedv against. j thezcurved., sidesfof the recess 11y and will: be.

curled thereby, tightly'. around.thebar15..lf5

Preferably pressure is er'erted against. the...

button head andfastener headduringthe ate taching operation sothat .fabric ,to` which. the button is attached; is ,tightly compressed betweenffthe fastenerhead andqtheyb'ase of 'so the-button which: is ,held inb such. compressed. f., condition t'by lthe*firm..bendingof. the fastener; jf pnongs about thefbar.'v 1,11

For single ,prong attachment.. (see Ei'gsq4 y f5 andl 5.)thfe margins ,ofthe :dieeupj19de-recon? tracted appropriately to forni, arestricted opening toreceive the fastener; ,prong 21. l In the .presentlcase the restricted opening, 204 n g is providedlby, bending inwardly themergins 22eftlej dierecessafter tlieI formation of; the 9o recess; either` ,the drillingor die-.operation .1 mentioned above iii-connection- Iviththe die recessll.v rllhe diameter., of'` the'lre'stri'ctedopening 20 is preferably less than thatofthe. i fastener prong` so. thatl theVK fastener prong must'be'forced into the opening and is there* Q fore grippedtightly the vmargins ofthe opening 20X" The curved surface of the die. recess 11 serves `to upset the fastener prong 21 and enlarge it just inside the opening 20,

JoIIN 1v1. CLARK, er DETROIT, MICHIGAN. AssffINonTo UNIVERSAL BUTTQN'ASENA ING a :BUTTON COMPANY, or DETROIT, MICHIQAN. A coaronATIoN on rrr-africani,

so that the fabric to which the button is vattached is tightly gripped between the fastener head and thevbase of the button.

VThe button head 12 may be attached to the button shank in any vappropriate manner, such as byspot welding or, l*as here shown, riveting the end ofthe button shank overr the Ybutton head. For the latter mode of as-V sembly, the button headis .perforated eentrally at 23 to receive the button shank. A t

some stage of the fabrication of the button after the assembly of the button head and it Y I button shanlna blow is delivered to the end l tion, the shank is left free to expand slightly Aasl at 25, underneath the head, so that the latter may beiirmly gripped on both'sides and ofthe shank suchk as to rivet it over, asat24,

upon the face of the button. In suchoperawill beimmovably attached tothe shank.

iIn'Fig' 1 the riveted andV upset portions 24y and 25 of the shank vare somewhat `exaggerated for the sake of better illustration. 1

The button head` is preferably provided with a protective yand decorative coveringV "ffl which serves also to conceal or obliterate any evidence of the riveting or other mode of at' ltaching the button head to the shank. In the present case the covering shown in the form of a thin metal shell 26 is attached to the 'fibutton head by crimping its margins 27'V underneath-the head. The shell l26 is'prefp erably non-corrosive incharacter and may be fprovided Awith any desired form vof embossf `r ing 28`eitherfor'the purpose.v of decorationi J :'or'to' exhibit a trademarkor'both.

Obviously the invention is notv limited toV the details of the illustrated embodiment hereindisclosed, since these may be variously modified VMoreoveigit is not indispensable that all'features of the invention be used con-- jointly since various features may be advantageously employed in different combinations and sub-combinations. Y y Having described my invention, I claim:

`3 A button of the character described coml prising in combination a solid, soft steel, rodlikel button shank of substantiallyun'iform .t

diameter throughout, a fiaty sheet metal head having a central perforation into'which saidy shank projects, said shank being upsetfon opposite sidesof said head to secure'thelatter n Y to said shank, the opposite endof said shank Y being formed with a concave recess' for upsetting a pronged attaching fastener and havinga member for engaging the upset fastener` p' to Vprevent its withdrawal from said recess, Vand a decorative metal shell covering the top of said head and having margins crimped f underneath said head. f

. In witness of the foregoing Iaiiix my signature.

J `OI-IN M.` CLARK, Y 

